Today i finished hooking up the lpddr4(later x) to the rockchip soc , but while doing so and following the offical ref. design and datasheet i saw a problem they were talking about CS0A/B and CS1A/B ??? So i was totally confused as that are not valid lpddr4 pins as far as i know it , so i proccedet to look at other projects schematics and i saw some using it too , but when i looked up the offical ref design and thier Ram’s Datasheets i saw that these pins arent real there too (so if i am not wrong they all used the ref design wich was for a specific ram or smth because on all designs the pins are NC or DNU pins so defently not connect !) .. But before i didnt know that i thought my ram that i planned to use (lpddr4) only had this problem as the datasheet says 1CS pin but after switching to s stlightly bigger (lpddr4x) type Ram i saw its the same 1cs per bank so anyways now i have an new ram and buck converter on the board 🫠… I will defently include a deeper note on this in the Github Repo ! The Buck is on another schematic page (not on the screenshot) , but it is just a standart SY8089AAAC making the 0.6V , note that its importand to pick an stable and fast switching buck for precision parts (fast or precise) like ram